Finding the Fourth Proportional to 136,629.05, 203,585.36 and 121,723.43
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Solution
The fourth proportional to 136,629.05, 203,585.36 and 121,723.43 is: 181,375.10
Step by Step Solution
- Step 1: Write the proportion equation
136,629.05 : 203,585.36 = 121,723.43 : x - Step 2: Convert to fraction form
136,629.05/203,585.36 = 121,723.43/x - Step 3: Cross multiply
136,629.05x = 203,585.36 × 121,723.43 - Step 4: Simplify right side
136,629.05x = 24,781,106,690.44 - Step 5: Solve for x
x = 24,781,106,690.44/136,629.05 - Step 6: Final answer
x = 181,375.10
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.